87143008 has 24 divisors (see below), whose sum is σ = 171793440. Its totient is φ = 43512960.

The previous prime is 87142997. The next prime is 87143009. The reversal of 87143008 is 80034178.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87143009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31938 + ... + 34558.

It is an arithmetic number, because the mean of its divisors is an integer number (7158060).

Almost surely, 2^87143008 is an apocalyptic number.

It is an amenable number.

87143008 is a deficient number, since it is larger than the sum of its proper divisors (84650432).

87143008 is a wasteful number, since it uses less digits than its factorization.

87143008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670 (or 3662 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 87143008 is about 9335.0419388453. The cubic root of 87143008 is about 443.3474167171.

The spelling of 87143008 in words is "eighty-seven million, one hundred forty-three thousand, eight".